Profile: Weifang Donglin Chemical Co., Ltd. is a manufacturer of PVC processing aids. We are certified with ISO 9001:2008 quality certification. Our DLT series PVC processing aid is a kind of polymer with a special structure. It is used for u-PVC profiles, pipes, and pipe fittings. It is very suitable for transparent PVC products such as films and sheets. Our PVC sparkling modifier DLF series is a processing aid based on a high molecular weight resin. This series improves the processability, and performance of PVC formulations. It is widely used in PVC profiles, sections, pipes, pipe fittings, and low foam products to inhibit foaming.